EP 3701528 B1 20230315 - SEGMENTATION-BASED FEATURE EXTRACTION FOR ACOUSTIC SCENE CLASSIFICATION
Title (en)
SEGMENTATION-BASED FEATURE EXTRACTION FOR ACOUSTIC SCENE CLASSIFICATION
Title (de)
SEGMENTIERUNGSBASIERTE MERKMALSEXTRAKTION FÜR AKUSTISCHE SZENENKLASSIFIZIERUNG
Title (fr)
EXTRACTION DE CARACTÉRISTIQUES À BASE DE SEGMENTATION POUR CLASSIFICATION DE SCÈNE ACOUSTIQUE
Publication
Application
Priority
EP 2017078108 W 20171102
Abstract (en)
[origin: WO2019086118A1] An apparatus and a method for acoustic scene classification of a block of audio samples. The block is partitioned into frames in the time domain. For each frame of a plurality of frames of the block, a change measure between the frame and a preceding frame of the block is calculated. The frame is assigned to one of a set of short-event frames, a set of long-event frames, and a set of background frames, based on the calculated change measure. The feature vector is determined based on a feature computed from the set of short-event frames, the set of long-event frames, and the set of background frames.
IPC 8 full level
G10L 25/51 (2013.01)
CPC (source: EP US)
G10L 25/18 (2013.01 - US); G10L 25/21 (2013.01 - US); G10L 25/51 (2013.01 - EP US)
Designated contracting state (EPC)
AL AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO RS SE SI SK SM TR
DOCDB simple family (publication)
WO 2019086118 A1 20190509; CN 111279414 A 20200612; CN 111279414 B 20221206; EP 3701528 A1 20200902; EP 3701528 B1 20230315; US 11386916 B2 20220712; US 2020265864 A1 20200820
DOCDB simple family (application)
EP 2017078108 W 20171102; CN 201780096390 A 20171102; EP 17793937 A 20171102; US 202016866183 A 20200504